Datasheet

Intel
®
Server Board S2400GP TPS Functional Architecture
Revision 1.01
Intel order number G50295-002
39
3.8.11 Universal Serial Bus (USB) Controller
The C600 chipset has up to two Enhanced Host Controller Interface (EHCI) host controllers that
support USB high-speed signaling. High-speed USB 2.0 allows data transfers up to 480 Mb/s
which is 40 times faster than full-speed USB. The C600 chipset supports up to fourteen USB 2.0
ports. All fourteen ports are high-speed, full-speed, and low-speed capable.
3.8.12 Gigabit Ethernet Controller
The Gigabit Ethernet Controller provides a system interface using a PCI function. The controller
provides a full memory-mapped or IO mapped interface along with a 64 bit address master
support for systems using more than 4 GB of physical memory and DMA (Direct Memory
Addressing) mechanisms for high performance data transfers. Its bus master capabilities enable
the component to process high-level commands and perform multiple operations; this lowers
processor utilization by off-loading communication tasks from the processor. Two large
configurable transmit and receive FIFOs (up to 20 KB each) help prevent data under-runs and
overruns while waiting for bus accesses. This enables the integrated LAN controller to transmit
data with minimum interframe spacing (IFS).
The LAN controller can operate at multiple speeds (10/100/1000 MB/s) and in either full duplex
or half duplex mode. In full duplex mode the LAN controller adheres with the IEEE 802.3x Flow
Control Specification. Half duplex performance is enhanced by a proprietary collision reduction
mechanism.
3.8.13 RTC
The C600 chipset contains a Motorola MC146818B-compatible real-time clock with 256 bytes of
battery-backed RAM. The real-time clock performs two key functions: keeping track of the time
of day and storing system data, even when the system is powered down. The RTC operates on
a 32.768 KHz crystal and a 3 V battery. The RTC also supports two lockable memory ranges.
By setting bits in the configuration space, two 8-byte ranges can be locked to read and write
accesses. This prevents unauthorized reading of passwords or other system security
information. The RTC also supports a date alarm that allows for scheduling a wake up event up
to 30 days in advance, rather than just 24 hours in advance.
3.8.14 GPIO
Various general purpose inputs and outputs are provided for custom system design. The
number of inputs and outputs varies depending on the C600 chipset configuration.
3.8.15 Enhanced Power Management
The C600 chipset’s power management functions include enhanced clock control and various
low-power (suspend) states (for example, Suspend-to-RAM and Suspend-to-Disk). A hardware-
based thermal management circuit permits software-independent entrance to low-power states.
The C600 chipset contains full support for the Advanced Configuration and Power Interface
(ACPI) Specification, Revision 4.0a.